21140096

素因数分解:

$2^7\times {\mathrm{317}}^1\times {\mathrm{521}}^1$

素因数の和:852

約数の個数: 32

約数和(自身を含む): 42328980

約数和(自身を除く): 21188884

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 317, 521, 634, 1042, 1268, 2084, 2536, 4168, 5072, 8336, 10144, 16672, 20288, 33344, 40576, 66688, 165157, 330314, 660628, 1321256, 2642512, 5285024, 10570048, 21140096]

約数ペア:

[(1, 21140096), (2, 10570048), (4, 5285024), (8, 2642512), (16, 1321256), (32, 660628), (64, 330314), (128, 165157), (317, 66688), (521, 40576), (634, 33344), (1042, 20288), (1268, 16672), (2084, 10144), (2536, 8336), (4168, 5072)]